Author(s): Gabriele Harb; Gabriel Spreitzer; Josef Schneider
Linked Author(s): Josef Schneider, Gabriele Harb
Keywords: Sediment transport; Bed load; Steep channels; Tracer
Abstract: Torrential floods combined with sediment transport processes presents major hazards to human life and infrastructure in Alpine Catchments. Despite the importance of sediment transport due to the large damage caused in case of flood events, we lack data on sediment movement in steep channels and torrents to improve the understanding of sediment transport processes in steep channel. This paper presents the measurement system in an Alpine catchment in Austria consisting of meteorological stations, runoff gauges and tracer stones. In addition sediment availability, mobilization and accumulation have been mapped and quantified by means of laser scanning and terrestrial photogrammetry. This contribution focuses on field measurements of bed load transport processes in steep channels based on tracer stone data, bed load measurements, precipitation and discharge data. The measurement data was compared to several sediment transport formulae for steep slopes.
Year: 2015